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Re:Lose weight the slow and incredibly difficult way by DiggyJohnson on Thursday September 22, 2022 @05:23PM (#32944808)
I don’t see why these things must be as interconnected as you’re question suggests.

If you have a relatively constant outflow of breath, measurably but not drastically affected by exercise, the CICO conception could still account for the net difference in body mass.

Re:Lose weight the slow and incredibly difficult way by dTal on Friday September 23, 2022 @04:46PM (#32956860)
Your exhalations are a direct result of the chemical reaction that gives you energy: C + O2 -> CO2. C is your carbon-based food, O2 is your inhalation, and CO2 is your exhalation. When you burn more calories, you increase the speed of that reaction, and you breath out more CO2. That is why exercise makes you lose weight (and why it makes you heat up). They are inextricable. The mass has to go somewhere!